webpack.config.js

const webpack = require('webpack');
const HtmlWebPackPlugin = require('html-webpack-plugin');
const MiniCssExtractPlugin = require("mini-css-extract-plugin");
const CssMinimizerPlugin = require("css-minimizer-webpack-plugin");
const ESLintPlugin = require('eslint-webpack-plugin');

const path = require('path');
const dotenv = require('dotenv').config({path: __dirname + '/.env'});

module.exports = {
  entry: './src/scripts/main.js',
  plugins: [
    new HtmlWebPackPlugin({
      hash: true,
      template: "./src/index.html",
      filename: "./index.html"
    }),
    new MiniCssExtractPlugin({
      filename: "[name].css",
      chunkFilename: "[id].css"
    }),
    new webpack.DefinePlugin( {
      'process.env': JSON.stringify(process.env || dotenv.parsed),
    }),
    new ESLintPlugin()
  ],
  module: {
    rules: [
      {
        test: /\.scss$/,
        use: [
          MiniCssExtractPlugin.loader,
          { loader: 'css-loader', options: { sourceMap: true, importLoaders: 1 } },
          { loader: 'sass-loader', options: { sourceMap: true } },
        ],
      },
      {
        test: /\.css$/i,
        use: ["style-loader", "css-loader"],
      },
      {
        test: /\.(png|svg|jpg|jpeg|gif)$/,
        use: ['file-loader']
      },
      {
        test: /\.(woff|ttf|eot|svg)(\?v=[a-z0-9]\.[a-z0-9]\.[a-z0-9])?$/,
        use: [
          {
            loader: 'file-loader',
            options: {
              name: '[name].[ext]',
              outputPath: 'fonts/'
            }
          }
        ]
      }
    ]
  },
  optimization: {
    minimize: true,
    minimizer: [
      new CssMinimizerPlugin()
    ]
  },
  // Opens browser on run of npm start 
  devServer: {
    open: true
  }
};